Can hepatitis A spread through saliva?

Hepatitis A is mainly spread when tiny amounts of infected stool reach the mouth, rather than through saliva alone. Sharing food, drinks, or utensils can still create risk when hand or food hygiene is poor, because contamination may be present on objects or food. Saliva itself is not the usual route.

The virus affects the liver and may cause feeling generally unwell, nausea, loss of appetite, abdominal discomfort, fever, or dark urine. Some people have few symptoms. A person can spread infection before they realise they are ill, so a known household or close-contact exposure deserves medical advice even when everyone feels well. Read more about Hepatitis A for the illness and its usual course.

Wash hands carefully with soap and water after using the toilet and before preparing or eating food. Do not share food or drinks while an exposure is being assessed, and avoid preparing meals for others if you become unwell. Contact a clinician promptly after a confirmed close exposure; vaccination may help prevent illness after some exposures and can also protect against future infection. Hepatitis A Vaccination explains prevention options.

Arrange medical advice if you develop yellowing of the eyes or skin, dark urine, persistent vomiting, worsening abdominal pain, marked weakness, or difficulty keeping fluids down. A clinician may assess symptoms and order a Liver Function Test or hepatitis A blood tests. Seek urgent help for confusion, fainting, severe dehydration, or rapidly worsening illness.

Ask whether the contact counts as a meaningful exposure, whether vaccination is appropriate, which symptoms should trigger testing, and how long to take extra hygiene precautions. Tell the clinician when the contact happened, whether food was shared, and whether anyone involved has symptoms.